在层状岩体中平巷掘进提高炮孔利用率的探讨

摘要

介绍了乐昌铅锌矿层状岩体中平巷掘进的掏槽形式、装药结构、装药密度、起爆顺序，以及炮孔数、总装药量等技术参数。通过单项试验择优，最后采取综合措施，降低了平巷掘进成本，提高了炮孔利用率，取得了显著的经济效益。%This paper discusses main technological parameters such as cut mode，charging structure，charging density，ignition order，number of holes and total charge for drifting in stratified rocks in Lecang Lead-Zinc Mine.By atopting the optimal parameters and integrated management，the mine has decreased the cost of roadway excavation and increased the utilization factor of blastholes，achieving a significant benefit.